dlls/inetcomm/internettransport.c

   1 /*
   2  * Internet Messaging Transport Base Class
   3  *
   4  * Copyright 2006 Robert Shearman for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winnt.h"
  29 #include "winuser.h"
  30 #include "winsock2.h"
  31 #include "ws2tcpip.h"
  32 #include "objbase.h"
  33 #include "ole2.h"
  34 #include "mimeole.h"
  35
  36 #include "wine/debug.h"
  37
  38 #include "inetcomm_private.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(inetcomm);
  41
  42 static const WCHAR wszClassName[] = {'T','h','o','r','C','o','n','n','W','n','d','C','l','a','s','s',0};
  43
  44 #define IX_READ     (WM_USER + 0)
  45 #define IX_READLINE (WM_USER + 1)
  46 #define IX_WRITE    (WM_USER + 2)
  47
  48 HRESULT InternetTransport_Init(InternetTransport *This)
  49 {
  50     This->pCallback = NULL;
  51     This->Status = IXP_DISCONNECTED;
  52     This->Socket = -1;
  53     This->fCommandLogging = FALSE;
  54     This->fnCompletion = NULL;
  55
  56     return S_OK;
  57 }
  58
  59 HRESULT InternetTransport_GetServerInfo(InternetTransport *This, LPINETSERVER pInetServer)
  60 {
  61     if (This->Status == IXP_DISCONNECTED)
  62         return IXP_E_NOT_CONNECTED;
  63
  64     *pInetServer = This->ServerInfo;
  65     return S_OK;
  66 }
  67
  68 HRESULT InternetTransport_InetServerFromAccount(InternetTransport *This,
  69     IImnAccount *pAccount, LPINETSERVER pInetServer)
  70 {
  71     FIXME("(%p, %p): stub\n", pAccount, pInetServer);
  72     return E_NOTIMPL;
  73 }
  74
  75 HRESULT InternetTransport_Connect(InternetTransport *This,
  76     LPINETSERVER pInetServer, boolean fAuthenticate, boolean fCommandLogging)
  77 {
  78     struct addrinfo *ai;
  79     struct addrinfo *ai_cur;
  80     struct addrinfo hints;
  81     int ret;
  82     char szPort[10];
  83
  84     if (This->Status != IXP_DISCONNECTED)
  85         return IXP_E_ALREADY_CONNECTED;
  86
  87     This->ServerInfo = *pInetServer;
  88     This->fCommandLogging = fCommandLogging;
  89
  90     This->hwnd = CreateWindowW(wszClassName, wszClassName, 0, 0, 0, 0, 0, NULL, NULL, NULL, 0);
  91     if (!This->hwnd)
  92         return HRESULT_FROM_WIN32(GetLastError());
  93     SetWindowLongPtrW(This->hwnd, GWLP_USERDATA, (LONG_PTR)This);
  94
  95     hints.ai_flags          = 0;
  96     hints.ai_family         = PF_UNSPEC;
  97     hints.ai_socktype       = SOCK_STREAM;
  98     hints.ai_protocol       = IPPROTO_TCP;
  99     hints.ai_addrlen        = 0;
 100     hints.ai_addr           = NULL;
 101     hints.ai_canonname      = NULL;
 102     hints.ai_next           = NULL;
 103
 104     snprintf(szPort, sizeof(szPort), "%d", (unsigned short)pInetServer->dwPort);
 105
 106     InternetTransport_ChangeStatus(This, IXP_FINDINGHOST);
 107
 108     ret = getaddrinfo(pInetServer->szServerName, szPort, &hints, &ai);
 109     if (ret)
 110     {
 111         ERR("getaddrinfo failed: %d\n", ret);
 112         return IXP_E_CANT_FIND_HOST;
 113     }
 114
 115     for (ai_cur = ai; ai_cur; ai_cur = ai->ai_next)
 116     {
 117         int so;
 118
 119         if (TRACE_ON(inetcomm))
 120         {
 121             char host[256];
 122             char service[256];
 123             getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
 124                 host, sizeof(host), service, sizeof(service),
 125                 NI_NUMERICHOST | NI_NUMERICSERV);
 126             TRACE("trying %s:%s\n", host, service);
 127         }
 128
 129         InternetTransport_ChangeStatus(This, IXP_CONNECTING);
 130
 131         so = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
 132         if (so == -1)
 133         {
 134             WARN("socket() failed\n");
 135             continue;
 136         }
 137         This->Socket = so;
 138
 139         /* FIXME: set to async */
 140
 141         if (0 > connect(This->Socket, ai_cur->ai_addr, ai_cur->ai_addrlen))
 142         {
 143             WARN("connect() failed\n");
 144             closesocket(This->Socket);
 145             continue;
 146         }
 147         InternetTransport_ChangeStatus(This, IXP_CONNECTED);
 148
 149         /* FIXME: call WSAAsyncSelect */
 150
 151         freeaddrinfo(ai);
 152         TRACE("connected\n");
 153         return S_OK;
 154     }
 155
 156     freeaddrinfo(ai);
 157
 158     return IXP_E_CANT_FIND_HOST;
 159 }
 160
 161 HRESULT InternetTransport_HandsOffCallback(InternetTransport *This)
 162 {
 163     if (!This->pCallback)
 164         return S_FALSE;
 165
 166     ITransportCallback_Release(This->pCallback);
 167     This->pCallback = NULL;
 168
 169     return S_OK;
 170 }
 171
 172 HRESULT InternetTransport_DropConnection(InternetTransport *This)
 173 {
 174     int ret;
 175
 176     if (This->Status == IXP_DISCONNECTED)
 177         return IXP_E_NOT_CONNECTED;
 178
 179     ret = shutdown(This->Socket, SD_BOTH);
 180
 181     ret = closesocket(This->Socket);
 182
 183     DestroyWindow(This->hwnd);
 184     This->hwnd = NULL;
 185
 186     InternetTransport_ChangeStatus(This, IXP_DISCONNECTED);
 187
 188     return S_OK;
 189 }
 190
 191 HRESULT InternetTransport_GetStatus(InternetTransport *This,
 192     IXPSTATUS *pCurrentStatus)
 193 {
 194     *pCurrentStatus = This->Status;
 195     return S_OK;
 196 }
 197
 198 HRESULT InternetTransport_ChangeStatus(InternetTransport *This, IXPSTATUS Status)
 199 {
 200     This->Status = Status;
 201     if (This->pCallback)
 202         ITransportCallback_OnStatus(This->pCallback, Status,
 203             (IInternetTransport *)&This->u.vtbl);
 204     return S_OK;
 205 }
 206
 207 HRESULT InternetTransport_ReadLine(InternetTransport *This,
 208     INETXPORT_COMPLETION_FUNCTION fnCompletion)
 209 {
 210     if (This->Status == IXP_DISCONNECTED)
 211         return IXP_E_NOT_CONNECTED;
 212
 213     if (This->fnCompletion)
 214         return IXP_E_BUSY;
 215
 216     This->fnCompletion = fnCompletion;
 217
 218     This->cbBuffer = 1024;
 219     This->pBuffer = HeapAlloc(GetProcessHeap(), 0, This->cbBuffer);
 220     This->iCurrentBufferOffset = 0;
 221
 222     if (WSAAsyncSelect(This->Socket, This->hwnd, IX_READLINE, FD_READ) == SOCKET_ERROR)
 223     {
 224         ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 225         /* FIXME: handle error */
 226     }
 227     return S_OK;
 228 }
 229
 230 HRESULT InternetTransport_Write(InternetTransport *This, const char *pvData,
 231     int cbSize, INETXPORT_COMPLETION_FUNCTION fnCompletion)
 232 {
 233     int ret;
 234
 235     if (This->Status == IXP_DISCONNECTED)
 236         return IXP_E_NOT_CONNECTED;
 237
 238     if (This->fnCompletion)
 239         return IXP_E_BUSY;
 240
 241     /* FIXME: do this asynchronously */
 242     ret = send(This->Socket, pvData, cbSize, 0);
 243     if (ret == SOCKET_ERROR)
 244     {
 245         ERR("send failed with error %d\n", WSAGetLastError());
 246         /* FIXME: handle error */
 247     }
 248
 249     fnCompletion((IInternetTransport *)&This->u.vtbl, NULL, 0);
 250
 251     return S_OK;
 252 }
 253
 254 HRESULT InternetTransport_DoCommand(InternetTransport *This,
 255     LPCSTR pszCommand, INETXPORT_COMPLETION_FUNCTION fnCompletion)
 256 {
 257     if (This->Status == IXP_DISCONNECTED)
 258         return IXP_E_NOT_CONNECTED;
 259
 260     if (This->fnCompletion)
 261         return IXP_E_BUSY;
 262
 263     if (This->pCallback && This->fCommandLogging)
 264     {
 265         ITransportCallback_OnCommand(This->pCallback, CMD_SEND, (LPSTR)pszCommand, 0,
 266             (IInternetTransport *)&This->u.vtbl);
 267     }
 268     return InternetTransport_Write(This, pszCommand, strlen(pszCommand), fnCompletion);
 269 }
 270
 271 static LRESULT CALLBACK InternetTransport_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 272 {
 273     if (uMsg == IX_READ)
 274     {
 275         InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 276
 277         /* no work to do */
 278         if (!This->fnCompletion)
 279             return 0;
 280
 281         while (This->iCurrentBufferOffset < This->cbBuffer)
 282         {
 283             if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
 284             {
 285                 if (WSAGetLastError() == WSAEWOULDBLOCK)
 286                     break;
 287
 288                 ERR("recv failed with error %d\n", WSAGetLastError());
 289                 /* FIXME: handle error */
 290             }
 291
 292             This->iCurrentBufferOffset++;
 293         }
 294         if (This->iCurrentBufferOffset == This->cbBuffer)
 295         {
 296             INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
 297             char *pBuffer;
 298
 299             This->fnCompletion = NULL;
 300             pBuffer = This->pBuffer;
 301             This->pBuffer = NULL;
 302             fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
 303                 This->iCurrentBufferOffset);
 304             HeapFree(GetProcessHeap(), 0, pBuffer);
 305             return 0;
 306         }
 307
 308         if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
 309         {
 310             ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 311             /* FIXME: handle error */
 312         }
 313         return 0;
 314     }
 315     else if (uMsg == IX_READLINE)
 316     {
 317         InternetTransport *This = (InternetTransport *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 318
 319         /* no work to do */
 320         if (!This->fnCompletion)
 321             return 0;
 322
 323         while (This->iCurrentBufferOffset < This->cbBuffer - 1)
 324         {
 325             fd_set infd;
 326
 327             if (recv(This->Socket, &This->pBuffer[This->iCurrentBufferOffset], 1, 0) <= 0)
 328             {
 329                 if (WSAGetLastError() == WSAEWOULDBLOCK)
 330                     break;
 331
 332                 ERR("recv failed with error %d\n", WSAGetLastError());
 333                 /* FIXME: handle error */
 334                 return 0;
 335             }
 336
 337             if (This->pBuffer[This->iCurrentBufferOffset] == '\n')
 338             {
 339                 INETXPORT_COMPLETION_FUNCTION fnCompletion = This->fnCompletion;
 340                 char *pBuffer;
 341
 342                 This->fnCompletion = NULL;
 343                 This->pBuffer[This->iCurrentBufferOffset++] = '\0';
 344                 pBuffer = This->pBuffer;
 345                 This->pBuffer = NULL;
 346
 347                 fnCompletion((IInternetTransport *)&This->u.vtbl, pBuffer,
 348                     This->iCurrentBufferOffset);
 349
 350                 HeapFree(GetProcessHeap(), 0, pBuffer);
 351                 return 0;
 352             }
 353             if (This->pBuffer[This->iCurrentBufferOffset] != '\r')
 354                 This->iCurrentBufferOffset++;
 355
 356             FD_ZERO(&infd);
 357             FD_SET(This->Socket, &infd);
 358         }
 359         if (This->iCurrentBufferOffset == This->cbBuffer - 1)
 360             return 0;
 361
 362         if (WSAAsyncSelect(This->Socket, hwnd, uMsg, FD_READ) == SOCKET_ERROR)
 363         {
 364             ERR("WSAAsyncSelect failed with error %d\n", WSAGetLastError());
 365             /* FIXME: handle error */
 366         }
 367         return 0;
 368     }
 369     else
 370         return DefWindowProcW(hwnd, uMsg, wParam, lParam);
 371 }
 372
 373 BOOL InternetTransport_RegisterClass(HINSTANCE hInstance)
 374 {
 375     WNDCLASSW cls;
 376     WSADATA wsadata;
 377
 378     if (WSAStartup(MAKEWORD(2, 2), &wsadata))
 379         return FALSE;
 380
 381     memset(&cls, 0, sizeof(cls));
 382     cls.hInstance     = hInstance;
 383     cls.lpfnWndProc   = InternetTransport_WndProc;
 384     cls.lpszClassName = wszClassName;
 385
 386     return RegisterClassW(&cls);
 387 }
 388
 389 void InternetTransport_UnregisterClass(HINSTANCE hInstance)
 390 {
 391     UnregisterClassW(wszClassName, hInstance);
 392     WSACleanup();
 393 }